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wl3501_cs.c
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1 /*
2  * WL3501 Wireless LAN PCMCIA Card Driver for Linux
3  * Written originally for Linux 2.0.30 by Fox Chen, [email protected]
4  * Ported to 2.2, 2.4 & 2.5 by Arnaldo Carvalho de Melo <[email protected]>
5  * Wireless extensions in 2.4 by Gustavo Niemeyer <[email protected]>
6  *
7  * References used by Fox Chen while writing the original driver for 2.0.30:
8  *
9  * 1. WL24xx packet drivers (tooasm.asm)
10  * 2. Access Point Firmware Interface Specification for IEEE 802.11 SUTRO
11  * 3. IEEE 802.11
12  * 4. Linux network driver (/usr/src/linux/drivers/net)
13  * 5. ISA card driver - wl24.c
14  * 6. Linux PCMCIA skeleton driver - skeleton.c
15  * 7. Linux PCMCIA 3c589 network driver - 3c589_cs.c
16  *
17  * Tested with WL2400 firmware 1.2, Linux 2.0.30, and pcmcia-cs-2.9.12
18  * 1. Performance: about 165 Kbytes/sec in TCP/IP with Ad-Hoc mode.
19  * rsh 192.168.1.3 "dd if=/dev/zero bs=1k count=1000" > /dev/null
20  * (Specification 2M bits/sec. is about 250 Kbytes/sec., but we must deduct
21  * ETHER/IP/UDP/TCP header, and acknowledgement overhead)
22  *
23  * Tested with Planet AP in 2.4.17, 184 Kbytes/s in UDP in Infrastructure mode,
24  * 173 Kbytes/s in TCP.
25  *
26  * Tested with Planet AP in 2.5.73-bk, 216 Kbytes/s in Infrastructure mode
27  * with a SMP machine (dual pentium 100), using pktgen, 432 pps (pkt_size = 60)
28  */
29 
30 #include <linux/delay.h>
31 #include <linux/types.h>
32 #include <linux/init.h>
33 #include <linux/interrupt.h>
34 #include <linux/in.h>
35 #include <linux/kernel.h>
36 #include <linux/module.h>
37 #include <linux/fcntl.h>
38 #include <linux/if_arp.h>
39 #include <linux/ioport.h>
40 #include <linux/netdevice.h>
41 #include <linux/etherdevice.h>
42 #include <linux/skbuff.h>
43 #include <linux/slab.h>
44 #include <linux/string.h>
45 #include <linux/wireless.h>
46 #include <linux/ieee80211.h>
47 
48 #include <net/iw_handler.h>
49 
50 #include <pcmcia/cistpl.h>
51 #include <pcmcia/cisreg.h>
52 #include <pcmcia/ds.h>
53 
54 #include <asm/io.h>
55 #include <asm/uaccess.h>
56 
57 #include "wl3501.h"
58 
59 #ifndef __i386__
60 #define slow_down_io()
61 #endif
62 
63 /* For rough constant delay */
64 #define WL3501_NOPLOOP(n) { int x = 0; while (x++ < n) slow_down_io(); }
65 
66 
67 
68 #define wl3501_outb(a, b) { outb(a, b); slow_down_io(); }
69 #define wl3501_outb_p(a, b) { outb_p(a, b); slow_down_io(); }
70 #define wl3501_outsb(a, b, c) { outsb(a, b, c); slow_down_io(); }
71 
72 #define WL3501_RELEASE_TIMEOUT (25 * HZ)
73 #define WL3501_MAX_ADHOC_TRIES 16
74 
75 #define WL3501_RESUME 0
76 #define WL3501_SUSPEND 1
77 
78 static int wl3501_config(struct pcmcia_device *link);
79 static void wl3501_release(struct pcmcia_device *link);
80 
81 static const struct {
82  int reg_domain;
83  int min, max, deflt;
84 } iw_channel_table[] = {
85  {
86  .reg_domain = IW_REG_DOMAIN_FCC,
87  .min = 1,
88  .max = 11,
89  .deflt = 1,
90  },
91  {
92  .reg_domain = IW_REG_DOMAIN_DOC,
93  .min = 1,
94  .max = 11,
95  .deflt = 1,
96  },
97  {
98  .reg_domain = IW_REG_DOMAIN_ETSI,
99  .min = 1,
100  .max = 13,
101  .deflt = 1,
102  },
103  {
104  .reg_domain = IW_REG_DOMAIN_SPAIN,
105  .min = 10,
106  .max = 11,
107  .deflt = 10,
108  },
109  {
110  .reg_domain = IW_REG_DOMAIN_FRANCE,
111  .min = 10,
112  .max = 13,
113  .deflt = 10,
114  },
115  {
116  .reg_domain = IW_REG_DOMAIN_MKK,
117  .min = 14,
118  .max = 14,
119  .deflt = 14,
120  },
121  {
122  .reg_domain = IW_REG_DOMAIN_MKK1,
123  .min = 1,
124  .max = 14,
125  .deflt = 1,
126  },
127  {
128  .reg_domain = IW_REG_DOMAIN_ISRAEL,
129  .min = 3,
130  .max = 9,
131  .deflt = 9,
132  },
133 };
134 
142 static int iw_valid_channel(int reg_domain, int channel)
143 {
144  int i, rc = 0;
145 
146  for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
147  if (reg_domain == iw_channel_table[i].reg_domain) {
148  rc = channel >= iw_channel_table[i].min &&
149  channel <= iw_channel_table[i].max;
150  break;
151  }
152  return rc;
153 }
154 
161 static int iw_default_channel(int reg_domain)
162 {
163  int i, rc = 1;
164 
165  for (i = 0; i < ARRAY_SIZE(iw_channel_table); i++)
166  if (reg_domain == iw_channel_table[i].reg_domain) {
167  rc = iw_channel_table[i].deflt;
168  break;
169  }
170  return rc;
171 }
172 
173 static void iw_set_mgmt_info_element(enum iw_mgmt_info_element_ids id,
174  struct iw_mgmt_info_element *el,
175  void *value, int len)
176 {
177  el->id = id;
178  el->len = len;
179  memcpy(el->data, value, len);
180 }
181 
182 static void iw_copy_mgmt_info_element(struct iw_mgmt_info_element *to,
183  struct iw_mgmt_info_element *from)
184 {
185  iw_set_mgmt_info_element(from->id, to, from->data, from->len);
186 }
187 
188 static inline void wl3501_switch_page(struct wl3501_card *this, u8 page)
189 {
190  wl3501_outb(page, this->base_addr + WL3501_NIC_BSS);
191 }
192 
193 /*
194  * Get Ethernet MAC address.
195  *
196  * WARNING: We switch to FPAGE0 and switc back again.
197  * Making sure there is no other WL function beening called by ISR.
198  */
199 static int wl3501_get_flash_mac_addr(struct wl3501_card *this)
200 {
201  int base_addr = this->base_addr;
202 
203  /* get MAC addr */
204  wl3501_outb(WL3501_BSS_FPAGE3, base_addr + WL3501_NIC_BSS); /* BSS */
205  wl3501_outb(0x00, base_addr + WL3501_NIC_LMAL); /* LMAL */
206  wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH); /* LMAH */
207 
208  /* wait for reading EEPROM */
209  WL3501_NOPLOOP(100);
210  this->mac_addr[0] = inb(base_addr + WL3501_NIC_IODPA);
211  WL3501_NOPLOOP(100);
212  this->mac_addr[1] = inb(base_addr + WL3501_NIC_IODPA);
213  WL3501_NOPLOOP(100);
214  this->mac_addr[2] = inb(base_addr + WL3501_NIC_IODPA);
215  WL3501_NOPLOOP(100);
216  this->mac_addr[3] = inb(base_addr + WL3501_NIC_IODPA);
217  WL3501_NOPLOOP(100);
218  this->mac_addr[4] = inb(base_addr + WL3501_NIC_IODPA);
219  WL3501_NOPLOOP(100);
220  this->mac_addr[5] = inb(base_addr + WL3501_NIC_IODPA);
221  WL3501_NOPLOOP(100);
222  this->reg_domain = inb(base_addr + WL3501_NIC_IODPA);
223  WL3501_NOPLOOP(100);
224  wl3501_outb(WL3501_BSS_FPAGE0, base_addr + WL3501_NIC_BSS);
225  wl3501_outb(0x04, base_addr + WL3501_NIC_LMAL);
226  wl3501_outb(0x40, base_addr + WL3501_NIC_LMAH);
227  WL3501_NOPLOOP(100);
228  this->version[0] = inb(base_addr + WL3501_NIC_IODPA);
229  WL3501_NOPLOOP(100);
230  this->version[1] = inb(base_addr + WL3501_NIC_IODPA);
231  /* switch to SRAM Page 0 (for safety) */
232  wl3501_switch_page(this, WL3501_BSS_SPAGE0);
233 
234  /* The MAC addr should be 00:60:... */
235  return this->mac_addr[0] == 0x00 && this->mac_addr[1] == 0x60;
236 }
237 
246 static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src,
247  int size)
248 {
249  /* switch to SRAM Page 0 */
250  wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 :
251  WL3501_BSS_SPAGE0);
252  /* set LMAL and LMAH */
253  wl3501_outb(dest & 0xff, this->base_addr + WL3501_NIC_LMAL);
254  wl3501_outb(((dest >> 8) & 0x7f), this->base_addr + WL3501_NIC_LMAH);
255 
256  /* rep out to Port A */
257  wl3501_outsb(this->base_addr + WL3501_NIC_IODPA, src, size);
258 }
259 
268 static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest,
269  int size)
270 {
271  /* switch to SRAM Page 0 */
272  wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 :
273  WL3501_BSS_SPAGE0);
274  /* set LMAL and LMAH */
275  wl3501_outb(src & 0xff, this->base_addr + WL3501_NIC_LMAL);
276  wl3501_outb((src >> 8) & 0x7f, this->base_addr + WL3501_NIC_LMAH);
277 
278  /* rep get from Port A */
279  insb(this->base_addr + WL3501_NIC_IODPA, dest, size);
280 }
281 
282 /*
283  * Get/Allocate a free Tx Data Buffer
284  *
285  * *--------------*-----------------*----------------------------------*
286  * | PLCP | MAC Header | DST SRC Data ... |
287  * | (24 bytes) | (30 bytes) | (6) (6) (Ethernet Row Data) |
288  * *--------------*-----------------*----------------------------------*
289  * \ \- IEEE 802.11 -/ \-------------- len --------------/
290  * \-struct wl3501_80211_tx_hdr--/ \-------- Ethernet Frame -------/
291  *
292  * Return = Position in Card
293  */
294 static u16 wl3501_get_tx_buffer(struct wl3501_card *this, u16 len)
295 {
296  u16 next, blk_cnt = 0, zero = 0;
297  u16 full_len = sizeof(struct wl3501_80211_tx_hdr) + len;
298  u16 ret = 0;
299 
300  if (full_len > this->tx_buffer_cnt * 254)
301  goto out;
302  ret = this->tx_buffer_head;
303  while (full_len) {
304  if (full_len < 254)
305  full_len = 0;
306  else
307  full_len -= 254;
308  wl3501_get_from_wla(this, this->tx_buffer_head, &next,
309  sizeof(next));
310  if (!full_len)
311  wl3501_set_to_wla(this, this->tx_buffer_head, &zero,
312  sizeof(zero));
313  this->tx_buffer_head = next;
314  blk_cnt++;
315  /* if buffer is not enough */
316  if (!next && full_len) {
317  this->tx_buffer_head = ret;
318  ret = 0;
319  goto out;
320  }
321  }
322  this->tx_buffer_cnt -= blk_cnt;
323 out:
324  return ret;
325 }
326 
327 /*
328  * Free an allocated Tx Buffer. ptr must be correct position.
329  */
330 static void wl3501_free_tx_buffer(struct wl3501_card *this, u16 ptr)
331 {
332  /* check if all space is not free */
333  if (!this->tx_buffer_head)
334  this->tx_buffer_head = ptr;
335  else
336  wl3501_set_to_wla(this, this->tx_buffer_tail,
337  &ptr, sizeof(ptr));
338  while (ptr) {
339  u16 next;
340 
341  this->tx_buffer_cnt++;
342  wl3501_get_from_wla(this, ptr, &next, sizeof(next));
343  this->tx_buffer_tail = ptr;
344  ptr = next;
345  }
346 }
347 
348 static int wl3501_esbq_req_test(struct wl3501_card *this)
349 {
350  u8 tmp = 0;
351 
352  wl3501_get_from_wla(this, this->esbq_req_head + 3, &tmp, sizeof(tmp));
353  return tmp & 0x80;
354 }
355 
356 static void wl3501_esbq_req(struct wl3501_card *this, u16 *ptr)
357 {
358  u16 tmp = 0;
359 
360  wl3501_set_to_wla(this, this->esbq_req_head, ptr, 2);
361  wl3501_set_to_wla(this, this->esbq_req_head + 2, &tmp, sizeof(tmp));
362  this->esbq_req_head += 4;
363  if (this->esbq_req_head >= this->esbq_req_end)
364  this->esbq_req_head = this->esbq_req_start;
365 }
366 
367 static int wl3501_esbq_exec(struct wl3501_card *this, void *sig, int sig_size)
368 {
369  int rc = -EIO;
370 
371  if (wl3501_esbq_req_test(this)) {
372  u16 ptr = wl3501_get_tx_buffer(this, sig_size);
373  if (ptr) {
374  wl3501_set_to_wla(this, ptr, sig, sig_size);
375  wl3501_esbq_req(this, &ptr);
376  rc = 0;
377  }
378  }
379  return rc;
380 }
381 
382 static int wl3501_get_mib_value(struct wl3501_card *this, u8 index,
383  void *bf, int size)
384 {
385  struct wl3501_get_req sig = {
386  .sig_id = WL3501_SIG_GET_REQ,
387  .mib_attrib = index,
388  };
389  unsigned long flags;
390  int rc = -EIO;
391 
392  spin_lock_irqsave(&this->lock, flags);
393  if (wl3501_esbq_req_test(this)) {
394  u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
395  if (ptr) {
396  wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
397  wl3501_esbq_req(this, &ptr);
398  this->sig_get_confirm.mib_status = 255;
399  spin_unlock_irqrestore(&this->lock, flags);
400  rc = wait_event_interruptible(this->wait,
401  this->sig_get_confirm.mib_status != 255);
402  if (!rc)
403  memcpy(bf, this->sig_get_confirm.mib_value,
404  size);
405  goto out;
406  }
407  }
408  spin_unlock_irqrestore(&this->lock, flags);
409 out:
410  return rc;
411 }
412 
413 static int wl3501_pwr_mgmt(struct wl3501_card *this, int suspend)
414 {
415  struct wl3501_pwr_mgmt_req sig = {
416  .sig_id = WL3501_SIG_PWR_MGMT_REQ,
417  .pwr_save = suspend,
418  .wake_up = !suspend,
419  .receive_dtims = 10,
420  };
421  unsigned long flags;
422  int rc = -EIO;
423 
424  spin_lock_irqsave(&this->lock, flags);
425  if (wl3501_esbq_req_test(this)) {
426  u16 ptr = wl3501_get_tx_buffer(this, sizeof(sig));
427  if (ptr) {
428  wl3501_set_to_wla(this, ptr, &sig, sizeof(sig));
429  wl3501_esbq_req(this, &ptr);
430  this->sig_pwr_mgmt_confirm.status = 255;
431  spin_unlock_irqrestore(&this->lock, flags);
432  rc = wait_event_interruptible(this->wait,
433  this->sig_pwr_mgmt_confirm.status != 255);
434  printk(KERN_INFO "%s: %s status=%d\n", __func__,
435  suspend ? "suspend" : "resume",
436  this->sig_pwr_mgmt_confirm.status);
437  goto out;
438  }
439  }
440  spin_unlock_irqrestore(&this->lock, flags);
441 out:
442  return rc;
443 }
444 
455 static int wl3501_send_pkt(struct wl3501_card *this, u8 *data, u16 len)
456 {
457  u16 bf, sig_bf, next, tmplen, pktlen;
458  struct wl3501_md_req sig = {
459  .sig_id = WL3501_SIG_MD_REQ,
460  };
461  u8 *pdata = (char *)data;
462  int rc = -EIO;
463 
464  if (wl3501_esbq_req_test(this)) {
465  sig_bf = wl3501_get_tx_buffer(this, sizeof(sig));
466  rc = -ENOMEM;
467  if (!sig_bf) /* No free buffer available */
468  goto out;
469  bf = wl3501_get_tx_buffer(this, len + 26 + 24);
470  if (!bf) {
471  /* No free buffer available */
472  wl3501_free_tx_buffer(this, sig_bf);
473  goto out;
474  }
475  rc = 0;
476  memcpy(&sig.daddr[0], pdata, 12);
477  pktlen = len - 12;
478  pdata += 12;
479  sig.data = bf;
480  if (((*pdata) * 256 + (*(pdata + 1))) > 1500) {
481  u8 addr4[ETH_ALEN] = {
482  [0] = 0xAA, [1] = 0xAA, [2] = 0x03, [4] = 0x00,
483  };
484 
485  wl3501_set_to_wla(this, bf + 2 +
486  offsetof(struct wl3501_tx_hdr, addr4),
487  addr4, sizeof(addr4));
488  sig.size = pktlen + 24 + 4 + 6;
489  if (pktlen > (254 - sizeof(struct wl3501_tx_hdr))) {
490  tmplen = 254 - sizeof(struct wl3501_tx_hdr);
491  pktlen -= tmplen;
492  } else {
493  tmplen = pktlen;
494  pktlen = 0;
495  }
496  wl3501_set_to_wla(this,
497  bf + 2 + sizeof(struct wl3501_tx_hdr),
498  pdata, tmplen);
499  pdata += tmplen;
500  wl3501_get_from_wla(this, bf, &next, sizeof(next));
501  bf = next;
502  } else {
503  sig.size = pktlen + 24 + 4 - 2;
504  pdata += 2;
505  pktlen -= 2;
506  if (pktlen > (254 - sizeof(struct wl3501_tx_hdr) + 6)) {
507  tmplen = 254 - sizeof(struct wl3501_tx_hdr) + 6;
508  pktlen -= tmplen;
509  } else {
510  tmplen = pktlen;
511  pktlen = 0;
512  }
513  wl3501_set_to_wla(this, bf + 2 +
514  offsetof(struct wl3501_tx_hdr, addr4),
515  pdata, tmplen);
516  pdata += tmplen;
517  wl3501_get_from_wla(this, bf, &next, sizeof(next));
518  bf = next;
519  }
520  while (pktlen > 0) {
521  if (pktlen > 254) {
522  tmplen = 254;
523  pktlen -= 254;
524  } else {
525  tmplen = pktlen;
526  pktlen = 0;
527  }
528  wl3501_set_to_wla(this, bf + 2, pdata, tmplen);
529  pdata += tmplen;
530  wl3501_get_from_wla(this, bf, &next, sizeof(next));
531  bf = next;
532  }
533  wl3501_set_to_wla(this, sig_bf, &sig, sizeof(sig));
534  wl3501_esbq_req(this, &sig_bf);
535  }
536 out:
537  return rc;
538 }
539 
540 static int wl3501_mgmt_resync(struct wl3501_card *this)
541 {
542  struct wl3501_resync_req sig = {
543  .sig_id = WL3501_SIG_RESYNC_REQ,
544  };
545 
546  return wl3501_esbq_exec(this, &sig, sizeof(sig));
547 }
548 
549 static inline int wl3501_fw_bss_type(struct wl3501_card *this)
550 {
551  return this->net_type == IW_MODE_INFRA ? WL3501_NET_TYPE_INFRA :
552  WL3501_NET_TYPE_ADHOC;
553 }
554 
555 static inline int wl3501_fw_cap_info(struct wl3501_card *this)
556 {
557  return this->net_type == IW_MODE_INFRA ? WL3501_MGMT_CAPABILITY_ESS :
558  WL3501_MGMT_CAPABILITY_IBSS;
559 }
560 
561 static int wl3501_mgmt_scan(struct wl3501_card *this, u16 chan_time)
562 {
563  struct wl3501_scan_req sig = {
564  .sig_id = WL3501_SIG_SCAN_REQ,
565  .scan_type = WL3501_SCAN_TYPE_ACTIVE,
566  .probe_delay = 0x10,
567  .min_chan_time = chan_time,
568  .max_chan_time = chan_time,
569  .bss_type = wl3501_fw_bss_type(this),
570  };
571 
572  this->bss_cnt = this->join_sta_bss = 0;
573  return wl3501_esbq_exec(this, &sig, sizeof(sig));
574 }
575 
576 static int wl3501_mgmt_join(struct wl3501_card *this, u16 stas)
577 {
578  struct wl3501_join_req sig = {
579  .sig_id = WL3501_SIG_JOIN_REQ,
580  .timeout = 10,
581  .ds_pset = {
582  .el = {
583  .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
584  .len = 1,
585  },
586  .chan = this->chan,
587  },
588  };
589 
590  memcpy(&sig.beacon_period, &this->bss_set[stas].beacon_period, 72);
591  return wl3501_esbq_exec(this, &sig, sizeof(sig));
592 }
593 
594 static int wl3501_mgmt_start(struct wl3501_card *this)
595 {
596  struct wl3501_start_req sig = {
597  .sig_id = WL3501_SIG_START_REQ,
598  .beacon_period = 400,
599  .dtim_period = 1,
600  .ds_pset = {
601  .el = {
602  .id = IW_MGMT_INFO_ELEMENT_DS_PARAMETER_SET,
603  .len = 1,
604  },
605  .chan = this->chan,
606  },
607  .bss_basic_rset = {
608  .el = {
609  .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
610  .len = 2,
611  },
612  .data_rate_labels = {
613  [0] = IW_MGMT_RATE_LABEL_MANDATORY |
614  IW_MGMT_RATE_LABEL_1MBIT,
615  [1] = IW_MGMT_RATE_LABEL_MANDATORY |
616  IW_MGMT_RATE_LABEL_2MBIT,
617  },
618  },
619  .operational_rset = {
620  .el = {
621  .id = IW_MGMT_INFO_ELEMENT_SUPPORTED_RATES,
622  .len = 2,
623  },
624  .data_rate_labels = {
625  [0] = IW_MGMT_RATE_LABEL_MANDATORY |
626  IW_MGMT_RATE_LABEL_1MBIT,
627  [1] = IW_MGMT_RATE_LABEL_MANDATORY |
628  IW_MGMT_RATE_LABEL_2MBIT,
629  },
630  },
631  .ibss_pset = {
632  .el = {
633  .id = IW_MGMT_INFO_ELEMENT_IBSS_PARAMETER_SET,
634  .len = 2,
635  },
636  .atim_window = 10,
637  },
638  .bss_type = wl3501_fw_bss_type(this),
639  .cap_info = wl3501_fw_cap_info(this),
640  };
641 
642  iw_copy_mgmt_info_element(&sig.ssid.el, &this->essid.el);
643  iw_copy_mgmt_info_element(&this->keep_essid.el, &this->essid.el);
644  return wl3501_esbq_exec(this, &sig, sizeof(sig));
645 }
646 
647 static void wl3501_mgmt_scan_confirm(struct wl3501_card *this, u16 addr)
648 {
649  u16 i = 0;
650  int matchflag = 0;
651  struct wl3501_scan_confirm sig;
652 
653  pr_debug("entry");
654  wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
655  if (sig.status == WL3501_STATUS_SUCCESS) {
656  pr_debug("success");
657  if ((this->net_type == IW_MODE_INFRA &&
658  (sig.cap_info & WL3501_MGMT_CAPABILITY_ESS)) ||
659  (this->net_type == IW_MODE_ADHOC &&
660  (sig.cap_info & WL3501_MGMT_CAPABILITY_IBSS)) ||
661  this->net_type == IW_MODE_AUTO) {
662  if (!this->essid.el.len)
663  matchflag = 1;
664  else if (this->essid.el.len == 3 &&
665  !memcmp(this->essid.essid, "ANY", 3))
666  matchflag = 1;
667  else if (this->essid.el.len != sig.ssid.el.len)
668  matchflag = 0;
669  else if (memcmp(this->essid.essid, sig.ssid.essid,
670  this->essid.el.len))
671  matchflag = 0;
672  else
673  matchflag = 1;
674  if (matchflag) {
675  for (i = 0; i < this->bss_cnt; i++) {
676  if (!memcmp(this->bss_set[i].bssid,
677  sig.bssid, ETH_ALEN)) {
678  matchflag = 0;
679  break;
680  }
681  }
682  }
683  if (matchflag && (i < 20)) {
684  memcpy(&this->bss_set[i].beacon_period,
685  &sig.beacon_period, 73);
686  this->bss_cnt++;
687  this->rssi = sig.rssi;
688  }
689  }
690  } else if (sig.status == WL3501_STATUS_TIMEOUT) {
691  pr_debug("timeout");
692  this->join_sta_bss = 0;
693  for (i = this->join_sta_bss; i < this->bss_cnt; i++)
694  if (!wl3501_mgmt_join(this, i))
695  break;
696  this->join_sta_bss = i;
697  if (this->join_sta_bss == this->bss_cnt) {
698  if (this->net_type == IW_MODE_INFRA)
699  wl3501_mgmt_scan(this, 100);
700  else {
701  this->adhoc_times++;
702  if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
703  wl3501_mgmt_start(this);
704  else
705  wl3501_mgmt_scan(this, 100);
706  }
707  }
708  }
709 }
710 
718 static int wl3501_block_interrupt(struct wl3501_card *this)
719 {
720  u8 old = inb(this->base_addr + WL3501_NIC_GCR);
721  u8 new = old & (~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC |
722  WL3501_GCR_ENECINT));
723 
724  wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
725  return old & WL3501_GCR_ENECINT;
726 }
727 
735 static int wl3501_unblock_interrupt(struct wl3501_card *this)
736 {
737  u8 old = inb(this->base_addr + WL3501_NIC_GCR);
738  u8 new = (old & ~(WL3501_GCR_ECINT | WL3501_GCR_INT2EC)) |
739  WL3501_GCR_ENECINT;
740 
741  wl3501_outb(new, this->base_addr + WL3501_NIC_GCR);
742  return old & WL3501_GCR_ENECINT;
743 }
744 
754 static u16 wl3501_receive(struct wl3501_card *this, u8 *bf, u16 size)
755 {
756  u16 next_addr, next_addr1;
757  u8 *data = bf + 12;
758 
759  size -= 12;
760  wl3501_get_from_wla(this, this->start_seg + 2,
761  &next_addr, sizeof(next_addr));
762  if (size > WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr)) {
763  wl3501_get_from_wla(this,
764  this->start_seg +
765  sizeof(struct wl3501_rx_hdr), data,
766  WL3501_BLKSZ -
767  sizeof(struct wl3501_rx_hdr));
768  size -= WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
769  data += WL3501_BLKSZ - sizeof(struct wl3501_rx_hdr);
770  } else {
771  wl3501_get_from_wla(this,
772  this->start_seg +
773  sizeof(struct wl3501_rx_hdr),
774  data, size);
775  size = 0;
776  }
777  while (size > 0) {
778  if (size > WL3501_BLKSZ - 5) {
779  wl3501_get_from_wla(this, next_addr + 5, data,
780  WL3501_BLKSZ - 5);
781  size -= WL3501_BLKSZ - 5;
782  data += WL3501_BLKSZ - 5;
783  wl3501_get_from_wla(this, next_addr + 2, &next_addr1,
784  sizeof(next_addr1));
785  next_addr = next_addr1;
786  } else {
787  wl3501_get_from_wla(this, next_addr + 5, data, size);
788  size = 0;
789  }
790  }
791  return 0;
792 }
793 
794 static void wl3501_esbq_req_free(struct wl3501_card *this)
795 {
796  u8 tmp;
797  u16 addr;
798 
799  if (this->esbq_req_head == this->esbq_req_tail)
800  goto out;
801  wl3501_get_from_wla(this, this->esbq_req_tail + 3, &tmp, sizeof(tmp));
802  if (!(tmp & 0x80))
803  goto out;
804  wl3501_get_from_wla(this, this->esbq_req_tail, &addr, sizeof(addr));
805  wl3501_free_tx_buffer(this, addr);
806  this->esbq_req_tail += 4;
807  if (this->esbq_req_tail >= this->esbq_req_end)
808  this->esbq_req_tail = this->esbq_req_start;
809 out:
810  return;
811 }
812 
813 static int wl3501_esbq_confirm(struct wl3501_card *this)
814 {
815  u8 tmp;
816 
817  wl3501_get_from_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
818  return tmp & 0x80;
819 }
820 
821 static void wl3501_online(struct net_device *dev)
822 {
823  struct wl3501_card *this = netdev_priv(dev);
824 
825  printk(KERN_INFO "%s: Wireless LAN online. BSSID: %pM\n",
826  dev->name, this->bssid);
827  netif_wake_queue(dev);
828 }
829 
830 static void wl3501_esbq_confirm_done(struct wl3501_card *this)
831 {
832  u8 tmp = 0;
833 
834  wl3501_set_to_wla(this, this->esbq_confirm + 3, &tmp, sizeof(tmp));
835  this->esbq_confirm += 4;
836  if (this->esbq_confirm >= this->esbq_confirm_end)
837  this->esbq_confirm = this->esbq_confirm_start;
838 }
839 
840 static int wl3501_mgmt_auth(struct wl3501_card *this)
841 {
842  struct wl3501_auth_req sig = {
843  .sig_id = WL3501_SIG_AUTH_REQ,
844  .type = WL3501_SYS_TYPE_OPEN,
845  .timeout = 1000,
846  };
847 
848  pr_debug("entry");
849  memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
850  return wl3501_esbq_exec(this, &sig, sizeof(sig));
851 }
852 
853 static int wl3501_mgmt_association(struct wl3501_card *this)
854 {
855  struct wl3501_assoc_req sig = {
856  .sig_id = WL3501_SIG_ASSOC_REQ,
857  .timeout = 1000,
858  .listen_interval = 5,
859  .cap_info = this->cap_info,
860  };
861 
862  pr_debug("entry");
863  memcpy(sig.mac_addr, this->bssid, ETH_ALEN);
864  return wl3501_esbq_exec(this, &sig, sizeof(sig));
865 }
866 
867 static void wl3501_mgmt_join_confirm(struct net_device *dev, u16 addr)
868 {
869  struct wl3501_card *this = netdev_priv(dev);
870  struct wl3501_join_confirm sig;
871 
872  pr_debug("entry");
873  wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
874  if (sig.status == WL3501_STATUS_SUCCESS) {
875  if (this->net_type == IW_MODE_INFRA) {
876  if (this->join_sta_bss < this->bss_cnt) {
877  const int i = this->join_sta_bss;
878  memcpy(this->bssid,
879  this->bss_set[i].bssid, ETH_ALEN);
880  this->chan = this->bss_set[i].ds_pset.chan;
881  iw_copy_mgmt_info_element(&this->keep_essid.el,
882  &this->bss_set[i].ssid.el);
883  wl3501_mgmt_auth(this);
884  }
885  } else {
886  const int i = this->join_sta_bss;
887 
888  memcpy(&this->bssid, &this->bss_set[i].bssid, ETH_ALEN);
889  this->chan = this->bss_set[i].ds_pset.chan;
890  iw_copy_mgmt_info_element(&this->keep_essid.el,
891  &this->bss_set[i].ssid.el);
892  wl3501_online(dev);
893  }
894  } else {
895  int i;
896  this->join_sta_bss++;
897  for (i = this->join_sta_bss; i < this->bss_cnt; i++)
898  if (!wl3501_mgmt_join(this, i))
899  break;
900  this->join_sta_bss = i;
901  if (this->join_sta_bss == this->bss_cnt) {
902  if (this->net_type == IW_MODE_INFRA)
903  wl3501_mgmt_scan(this, 100);
904  else {
905  this->adhoc_times++;
906  if (this->adhoc_times > WL3501_MAX_ADHOC_TRIES)
907  wl3501_mgmt_start(this);
908  else
909  wl3501_mgmt_scan(this, 100);
910  }
911  }
912  }
913 }
914 
915 static inline void wl3501_alarm_interrupt(struct net_device *dev,
916  struct wl3501_card *this)
917 {
918  if (this->net_type == IW_MODE_INFRA) {
919  printk(KERN_INFO "Wireless LAN offline\n");
920  netif_stop_queue(dev);
921  wl3501_mgmt_resync(this);
922  }
923 }
924 
925 static inline void wl3501_md_confirm_interrupt(struct net_device *dev,
926  struct wl3501_card *this,
927  u16 addr)
928 {
929  struct wl3501_md_confirm sig;
930 
931  pr_debug("entry");
932  wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
933  wl3501_free_tx_buffer(this, sig.data);
934  if (netif_queue_stopped(dev))
935  netif_wake_queue(dev);
936 }
937 
938 static inline void wl3501_md_ind_interrupt(struct net_device *dev,
939  struct wl3501_card *this, u16 addr)
940 {
941  struct wl3501_md_ind sig;
942  struct sk_buff *skb;
943  u8 rssi, addr4[ETH_ALEN];
944  u16 pkt_len;
945 
946  wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
947  this->start_seg = sig.data;
948  wl3501_get_from_wla(this,
949  sig.data + offsetof(struct wl3501_rx_hdr, rssi),
950  &rssi, sizeof(rssi));
951  this->rssi = rssi <= 63 ? (rssi * 100) / 64 : 255;
952 
953  wl3501_get_from_wla(this,
954  sig.data +
955  offsetof(struct wl3501_rx_hdr, addr4),
956  &addr4, sizeof(addr4));
957  if (!(addr4[0] == 0xAA && addr4[1] == 0xAA &&
958  addr4[2] == 0x03 && addr4[4] == 0x00)) {
959  printk(KERN_INFO "Insupported packet type!\n");
960  return;
961  }
962  pkt_len = sig.size + 12 - 24 - 4 - 6;
963 
964  skb = dev_alloc_skb(pkt_len + 5);
965 
966  if (!skb) {
967  printk(KERN_WARNING "%s: Can't alloc a sk_buff of size %d.\n",
968  dev->name, pkt_len);
969  dev->stats.rx_dropped++;
970  } else {
971  skb->dev = dev;
972  skb_reserve(skb, 2); /* IP headers on 16 bytes boundaries */
973  skb_copy_to_linear_data(skb, (unsigned char *)&sig.daddr, 12);
974  wl3501_receive(this, skb->data, pkt_len);
975  skb_put(skb, pkt_len);
976  skb->protocol = eth_type_trans(skb, dev);
977  dev->stats.rx_packets++;
978  dev->stats.rx_bytes += skb->len;
979  netif_rx(skb);
980  }
981 }
982 
983 static inline void wl3501_get_confirm_interrupt(struct wl3501_card *this,
984  u16 addr, void *sig, int size)
985 {
986  pr_debug("entry");
987  wl3501_get_from_wla(this, addr, &this->sig_get_confirm,
988  sizeof(this->sig_get_confirm));
989  wake_up(&this->wait);
990 }
991 
992 static inline void wl3501_start_confirm_interrupt(struct net_device *dev,
993  struct wl3501_card *this,
994  u16 addr)
995 {
996  struct wl3501_start_confirm sig;
997 
998  pr_debug("entry");
999  wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1000  if (sig.status == WL3501_STATUS_SUCCESS)
1001  netif_wake_queue(dev);
1002 }
1003 
1004 static inline void wl3501_assoc_confirm_interrupt(struct net_device *dev,
1005  u16 addr)
1006 {
1007  struct wl3501_card *this = netdev_priv(dev);
1008  struct wl3501_assoc_confirm sig;
1009 
1010  pr_debug("entry");
1011  wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1012 
1013  if (sig.status == WL3501_STATUS_SUCCESS)
1014  wl3501_online(dev);
1015 }
1016 
1017 static inline void wl3501_auth_confirm_interrupt(struct wl3501_card *this,
1018  u16 addr)
1019 {
1020  struct wl3501_auth_confirm sig;
1021 
1022  pr_debug("entry");
1023  wl3501_get_from_wla(this, addr, &sig, sizeof(sig));
1024 
1025  if (sig.status == WL3501_STATUS_SUCCESS)
1026  wl3501_mgmt_association(this);
1027  else
1028  wl3501_mgmt_resync(this);
1029 }
1030 
1031 static inline void wl3501_rx_interrupt(struct net_device *dev)
1032 {
1033  int morepkts;
1034  u16 addr;
1035  u8 sig_id;
1036  struct wl3501_card *this = netdev_priv(dev);
1037 
1038  pr_debug("entry");
1039 loop:
1040  morepkts = 0;
1041  if (!wl3501_esbq_confirm(this))
1042  goto free;
1043  wl3501_get_from_wla(this, this->esbq_confirm, &addr, sizeof(addr));
1044  wl3501_get_from_wla(this, addr + 2, &sig_id, sizeof(sig_id));
1045 
1046  switch (sig_id) {
1047  case WL3501_SIG_DEAUTH_IND:
1048  case WL3501_SIG_DISASSOC_IND:
1049  case WL3501_SIG_ALARM:
1050  wl3501_alarm_interrupt(dev, this);
1051  break;
1052  case WL3501_SIG_MD_CONFIRM:
1053  wl3501_md_confirm_interrupt(dev, this, addr);
1054  break;
1055  case WL3501_SIG_MD_IND:
1056  wl3501_md_ind_interrupt(dev, this, addr);
1057  break;
1058  case WL3501_SIG_GET_CONFIRM:
1059  wl3501_get_confirm_interrupt(this, addr,
1060  &this->sig_get_confirm,
1061  sizeof(this->sig_get_confirm));
1062  break;
1063  case WL3501_SIG_PWR_MGMT_CONFIRM:
1064  wl3501_get_confirm_interrupt(this, addr,
1065  &this->sig_pwr_mgmt_confirm,
1066  sizeof(this->sig_pwr_mgmt_confirm));
1067  break;
1068  case WL3501_SIG_START_CONFIRM:
1069  wl3501_start_confirm_interrupt(dev, this, addr);
1070  break;
1071  case WL3501_SIG_SCAN_CONFIRM:
1072  wl3501_mgmt_scan_confirm(this, addr);
1073  break;
1074  case WL3501_SIG_JOIN_CONFIRM:
1075  wl3501_mgmt_join_confirm(dev, addr);
1076  break;
1077  case WL3501_SIG_ASSOC_CONFIRM:
1078  wl3501_assoc_confirm_interrupt(dev, addr);
1079  break;
1080  case WL3501_SIG_AUTH_CONFIRM:
1081  wl3501_auth_confirm_interrupt(this, addr);
1082  break;
1083  case WL3501_SIG_RESYNC_CONFIRM:
1084  wl3501_mgmt_resync(this); /* FIXME: should be resync_confirm */
1085  break;
1086  }
1087  wl3501_esbq_confirm_done(this);
1088  morepkts = 1;
1089  /* free request if necessary */
1090 free:
1091  wl3501_esbq_req_free(this);
1092  if (morepkts)
1093  goto loop;
1094 }
1095 
1096 static inline void wl3501_ack_interrupt(struct wl3501_card *this)
1097 {
1098  wl3501_outb(WL3501_GCR_ECINT, this->base_addr + WL3501_NIC_GCR);
1099 }
1100 
1113 static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
1114 {
1115  struct net_device *dev = dev_id;
1116  struct wl3501_card *this;
1117 
1118  this = netdev_priv(dev);
1119  spin_lock(&this->lock);
1120  wl3501_ack_interrupt(this);
1121  wl3501_block_interrupt(this);
1122  wl3501_rx_interrupt(dev);
1123  wl3501_unblock_interrupt(this);
1124  spin_unlock(&this->lock);
1125 
1126  return IRQ_HANDLED;
1127 }
1128 
1129 static int wl3501_reset_board(struct wl3501_card *this)
1130 {
1131  u8 tmp = 0;
1132  int i, rc = 0;
1133 
1134  /* Coreset */
1135  wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1136  wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1137  wl3501_outb_p(WL3501_GCR_CORESET, this->base_addr + WL3501_NIC_GCR);
1138 
1139  /* Reset SRAM 0x480 to zero */
1140  wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1141 
1142  /* Start up */
1143  wl3501_outb_p(0, this->base_addr + WL3501_NIC_GCR);
1144 
1145  WL3501_NOPLOOP(1024 * 50);
1146 
1147  wl3501_unblock_interrupt(this); /* acme: was commented */
1148 
1149  /* Polling Self_Test_Status */
1150  for (i = 0; i < 10000; i++) {
1151  wl3501_get_from_wla(this, 0x480, &tmp, sizeof(tmp));
1152 
1153  if (tmp == 'W') {
1154  /* firmware complete all test successfully */
1155  tmp = 'A';
1156  wl3501_set_to_wla(this, 0x480, &tmp, sizeof(tmp));
1157  goto out;
1158  }
1159  WL3501_NOPLOOP(10);
1160  }
1161  printk(KERN_WARNING "%s: failed to reset the board!\n", __func__);
1162  rc = -ENODEV;
1163 out:
1164  return rc;
1165 }
1166 
1167 static int wl3501_init_firmware(struct wl3501_card *this)
1168 {
1169  u16 ptr, next;
1170  int rc = wl3501_reset_board(this);
1171 
1172  if (rc)
1173  goto fail;
1174  this->card_name[0] = '\0';
1175  wl3501_get_from_wla(this, 0x1a00,
1176  this->card_name, sizeof(this->card_name));
1177  this->card_name[sizeof(this->card_name) - 1] = '\0';
1178  this->firmware_date[0] = '\0';
1179  wl3501_get_from_wla(this, 0x1a40,
1180  this->firmware_date, sizeof(this->firmware_date));
1181  this->firmware_date[sizeof(this->firmware_date) - 1] = '\0';
1182  /* Switch to SRAM Page 0 */
1183  wl3501_switch_page(this, WL3501_BSS_SPAGE0);
1184  /* Read parameter from card */
1185  wl3501_get_from_wla(this, 0x482, &this->esbq_req_start, 2);
1186  wl3501_get_from_wla(this, 0x486, &this->esbq_req_end, 2);
1187  wl3501_get_from_wla(this, 0x488, &this->esbq_confirm_start, 2);
1188  wl3501_get_from_wla(this, 0x48c, &this->esbq_confirm_end, 2);
1189  wl3501_get_from_wla(this, 0x48e, &this->tx_buffer_head, 2);
1190  wl3501_get_from_wla(this, 0x492, &this->tx_buffer_size, 2);
1191  this->esbq_req_tail = this->esbq_req_head = this->esbq_req_start;
1192  this->esbq_req_end += this->esbq_req_start;
1193  this->esbq_confirm = this->esbq_confirm_start;
1194  this->esbq_confirm_end += this->esbq_confirm_start;
1195  /* Initial Tx Buffer */
1196  this->tx_buffer_cnt = 1;
1197  ptr = this->tx_buffer_head;
1198  next = ptr + WL3501_BLKSZ;
1199  while ((next - this->tx_buffer_head) < this->tx_buffer_size) {
1200  this->tx_buffer_cnt++;
1201  wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1202  ptr = next;
1203  next = ptr + WL3501_BLKSZ;
1204  }
1205  rc = 0;
1206  next = 0;
1207  wl3501_set_to_wla(this, ptr, &next, sizeof(next));
1208  this->tx_buffer_tail = ptr;
1209 out:
1210  return rc;
1211 fail:
1212  printk(KERN_WARNING "%s: failed!\n", __func__);
1213  goto out;
1214 }
1215 
1216 static int wl3501_close(struct net_device *dev)
1217 {
1218  struct wl3501_card *this = netdev_priv(dev);
1219  int rc = -ENODEV;
1220  unsigned long flags;
1221  struct pcmcia_device *link;
1222  link = this->p_dev;
1223 
1224  spin_lock_irqsave(&this->lock, flags);
1225  link->open--;
1226 
1227  /* Stop wl3501_hard_start_xmit() from now on */
1228  netif_stop_queue(dev);
1229  wl3501_ack_interrupt(this);
1230 
1231  /* Mask interrupts from the SUTRO */
1232  wl3501_block_interrupt(this);
1233 
1234  rc = 0;
1235  printk(KERN_INFO "%s: WL3501 closed\n", dev->name);
1236  spin_unlock_irqrestore(&this->lock, flags);
1237  return rc;
1238 }
1239 
1248 static int wl3501_reset(struct net_device *dev)
1249 {
1250  struct wl3501_card *this = netdev_priv(dev);
1251  int rc = -ENODEV;
1252 
1253  wl3501_block_interrupt(this);
1254 
1255  if (wl3501_init_firmware(this)) {
1256  printk(KERN_WARNING "%s: Can't initialize Firmware!\n",
1257  dev->name);
1258  /* Free IRQ, and mark IRQ as unused */
1259  free_irq(dev->irq, dev);
1260  goto out;
1261  }
1262 
1263  /*
1264  * Queue has to be started only when the Card is Started
1265  */
1266  netif_stop_queue(dev);
1267  this->adhoc_times = 0;
1268  wl3501_ack_interrupt(this);
1269  wl3501_unblock_interrupt(this);
1270  wl3501_mgmt_scan(this, 100);
1271  pr_debug("%s: device reset", dev->name);
1272  rc = 0;
1273 out:
1274  return rc;
1275 }
1276 
1277 static void wl3501_tx_timeout(struct net_device *dev)
1278 {
1279  struct wl3501_card *this = netdev_priv(dev);
1280  struct net_device_stats *stats = &dev->stats;
1281  unsigned long flags;
1282  int rc;
1283 
1284  stats->tx_errors++;
1285  spin_lock_irqsave(&this->lock, flags);
1286  rc = wl3501_reset(dev);
1287  spin_unlock_irqrestore(&this->lock, flags);
1288  if (rc)
1289  printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
1290  dev->name, rc);
1291  else {
1292  dev->trans_start = jiffies; /* prevent tx timeout */
1293  netif_wake_queue(dev);
1294  }
1295 }
1296 
1297 /*
1298  * Return : 0 - OK
1299  * 1 - Could not transmit (dev_queue_xmit will queue it)
1300  * and try to sent it later
1301  */
1302 static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
1303  struct net_device *dev)
1304 {
1305  int enabled, rc;
1306  struct wl3501_card *this = netdev_priv(dev);
1307  unsigned long flags;
1308 
1309  spin_lock_irqsave(&this->lock, flags);
1310  enabled = wl3501_block_interrupt(this);
1311  rc = wl3501_send_pkt(this, skb->data, skb->len);
1312  if (enabled)
1313  wl3501_unblock_interrupt(this);
1314  if (rc) {
1315  ++dev->stats.tx_dropped;
1316  netif_stop_queue(dev);
1317  } else {
1318  ++dev->stats.tx_packets;
1319  dev->stats.tx_bytes += skb->len;
1320  kfree_skb(skb);
1321 
1322  if (this->tx_buffer_cnt < 2)
1323  netif_stop_queue(dev);
1324  }
1325  spin_unlock_irqrestore(&this->lock, flags);
1326  return NETDEV_TX_OK;
1327 }
1328 
1329 static int wl3501_open(struct net_device *dev)
1330 {
1331  int rc = -ENODEV;
1332  struct wl3501_card *this = netdev_priv(dev);
1333  unsigned long flags;
1334  struct pcmcia_device *link;
1335  link = this->p_dev;
1336 
1337  spin_lock_irqsave(&this->lock, flags);
1338  if (!pcmcia_dev_present(link))
1339  goto out;
1340  netif_device_attach(dev);
1341  link->open++;
1342 
1343  /* Initial WL3501 firmware */
1344  pr_debug("%s: Initialize WL3501 firmware...", dev->name);
1345  if (wl3501_init_firmware(this))
1346  goto fail;
1347  /* Initial device variables */
1348  this->adhoc_times = 0;
1349  /* Acknowledge Interrupt, for cleaning last state */
1350  wl3501_ack_interrupt(this);
1351 
1352  /* Enable interrupt from card after all */
1353  wl3501_unblock_interrupt(this);
1354  wl3501_mgmt_scan(this, 100);
1355  rc = 0;
1356  pr_debug("%s: WL3501 opened", dev->name);
1357  printk(KERN_INFO "%s: Card Name: %s\n"
1358  "%s: Firmware Date: %s\n",
1359  dev->name, this->card_name,
1360  dev->name, this->firmware_date);
1361 out:
1362  spin_unlock_irqrestore(&this->lock, flags);
1363  return rc;
1364 fail:
1365  printk(KERN_WARNING "%s: Can't initialize firmware!\n", dev->name);
1366  goto out;
1367 }
1368 
1369 static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev)
1370 {
1371  struct wl3501_card *this = netdev_priv(dev);
1372  struct iw_statistics *wstats = &this->wstats;
1373  u32 value; /* size checked: it is u32 */
1374 
1375  memset(wstats, 0, sizeof(*wstats));
1376  wstats->status = netif_running(dev);
1377  if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_ICV_ERROR_COUNT,
1378  &value, sizeof(value)))
1379  wstats->discard.code += value;
1380  if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_UNDECRYPTABLE_COUNT,
1381  &value, sizeof(value)))
1382  wstats->discard.code += value;
1383  if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_EXCLUDED_COUNT,
1384  &value, sizeof(value)))
1385  wstats->discard.code += value;
1386  if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RETRY_COUNT,
1387  &value, sizeof(value)))
1388  wstats->discard.retries = value;
1389  if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FAILED_COUNT,
1390  &value, sizeof(value)))
1391  wstats->discard.misc += value;
1392  if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_FAILURE_COUNT,
1393  &value, sizeof(value)))
1394  wstats->discard.misc += value;
1395  if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_ACK_FAILURE_COUNT,
1396  &value, sizeof(value)))
1397  wstats->discard.misc += value;
1398  if (!wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAME_DUPLICATE_COUNT,
1399  &value, sizeof(value)))
1400  wstats->discard.misc += value;
1401  return wstats;
1402 }
1403 
1412 static void wl3501_detach(struct pcmcia_device *link)
1413 {
1414  struct net_device *dev = link->priv;
1415 
1416  /* If the device is currently configured and active, we won't actually
1417  * delete it yet. Instead, it is marked so that when the release()
1418  * function is called, that will trigger a proper detach(). */
1419 
1420  while (link->open > 0)
1421  wl3501_close(dev);
1422 
1423  netif_device_detach(dev);
1424  wl3501_release(link);
1425 
1426  unregister_netdev(dev);
1427 
1428  if (link->priv)
1429  free_netdev(link->priv);
1430 }
1431 
1432 static int wl3501_get_name(struct net_device *dev, struct iw_request_info *info,
1433  union iwreq_data *wrqu, char *extra)
1434 {
1435  strlcpy(wrqu->name, "IEEE 802.11-DS", sizeof(wrqu->name));
1436  return 0;
1437 }
1438 
1439 static int wl3501_set_freq(struct net_device *dev, struct iw_request_info *info,
1440  union iwreq_data *wrqu, char *extra)
1441 {
1442  struct wl3501_card *this = netdev_priv(dev);
1443  int channel = wrqu->freq.m;
1444  int rc = -EINVAL;
1445 
1446  if (iw_valid_channel(this->reg_domain, channel)) {
1447  this->chan = channel;
1448  rc = wl3501_reset(dev);
1449  }
1450  return rc;
1451 }
1452 
1453 static int wl3501_get_freq(struct net_device *dev, struct iw_request_info *info,
1454  union iwreq_data *wrqu, char *extra)
1455 {
1456  struct wl3501_card *this = netdev_priv(dev);
1457 
1458  wrqu->freq.m = ieee80211_dsss_chan_to_freq(this->chan) * 100000;
1459  wrqu->freq.e = 1;
1460  return 0;
1461 }
1462 
1463 static int wl3501_set_mode(struct net_device *dev, struct iw_request_info *info,
1464  union iwreq_data *wrqu, char *extra)
1465 {
1466  int rc = -EINVAL;
1467 
1468  if (wrqu->mode == IW_MODE_INFRA ||
1469  wrqu->mode == IW_MODE_ADHOC ||
1470  wrqu->mode == IW_MODE_AUTO) {
1471  struct wl3501_card *this = netdev_priv(dev);
1472 
1473  this->net_type = wrqu->mode;
1474  rc = wl3501_reset(dev);
1475  }
1476  return rc;
1477 }
1478 
1479 static int wl3501_get_mode(struct net_device *dev, struct iw_request_info *info,
1480  union iwreq_data *wrqu, char *extra)
1481 {
1482  struct wl3501_card *this = netdev_priv(dev);
1483 
1484  wrqu->mode = this->net_type;
1485  return 0;
1486 }
1487 
1488 static int wl3501_get_sens(struct net_device *dev, struct iw_request_info *info,
1489  union iwreq_data *wrqu, char *extra)
1490 {
1491  struct wl3501_card *this = netdev_priv(dev);
1492 
1493  wrqu->sens.value = this->rssi;
1494  wrqu->sens.disabled = !wrqu->sens.value;
1495  wrqu->sens.fixed = 1;
1496  return 0;
1497 }
1498 
1499 static int wl3501_get_range(struct net_device *dev,
1500  struct iw_request_info *info,
1501  union iwreq_data *wrqu, char *extra)
1502 {
1503  struct iw_range *range = (struct iw_range *)extra;
1504 
1505  /* Set the length (very important for backward compatibility) */
1506  wrqu->data.length = sizeof(*range);
1507 
1508  /* Set all the info we don't care or don't know about to zero */
1509  memset(range, 0, sizeof(*range));
1510 
1511  /* Set the Wireless Extension versions */
1512  range->we_version_compiled = WIRELESS_EXT;
1513  range->we_version_source = 1;
1514  range->throughput = 2 * 1000 * 1000; /* ~2 Mb/s */
1515  /* FIXME: study the code to fill in more fields... */
1516  return 0;
1517 }
1518 
1519 static int wl3501_set_wap(struct net_device *dev, struct iw_request_info *info,
1520  union iwreq_data *wrqu, char *extra)
1521 {
1522  struct wl3501_card *this = netdev_priv(dev);
1523  int rc = -EINVAL;
1524 
1525  /* FIXME: we support other ARPHRDs...*/
1526  if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
1527  goto out;
1528  if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data)) {
1529  /* FIXME: rescan? */
1530  } else
1531  memcpy(this->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
1532  /* FIXME: rescan? deassoc & scan? */
1533  rc = 0;
1534 out:
1535  return rc;
1536 }
1537 
1538 static int wl3501_get_wap(struct net_device *dev, struct iw_request_info *info,
1539  union iwreq_data *wrqu, char *extra)
1540 {
1541  struct wl3501_card *this = netdev_priv(dev);
1542 
1543  wrqu->ap_addr.sa_family = ARPHRD_ETHER;
1544  memcpy(wrqu->ap_addr.sa_data, this->bssid, ETH_ALEN);
1545  return 0;
1546 }
1547 
1548 static int wl3501_set_scan(struct net_device *dev, struct iw_request_info *info,
1549  union iwreq_data *wrqu, char *extra)
1550 {
1551  /*
1552  * FIXME: trigger scanning with a reset, yes, I'm lazy
1553  */
1554  return wl3501_reset(dev);
1555 }
1556 
1557 static int wl3501_get_scan(struct net_device *dev, struct iw_request_info *info,
1558  union iwreq_data *wrqu, char *extra)
1559 {
1560  struct wl3501_card *this = netdev_priv(dev);
1561  int i;
1562  char *current_ev = extra;
1563  struct iw_event iwe;
1564 
1565  for (i = 0; i < this->bss_cnt; ++i) {
1566  iwe.cmd = SIOCGIWAP;
1567  iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1568  memcpy(iwe.u.ap_addr.sa_data, this->bss_set[i].bssid, ETH_ALEN);
1569  current_ev = iwe_stream_add_event(info, current_ev,
1570  extra + IW_SCAN_MAX_DATA,
1571  &iwe, IW_EV_ADDR_LEN);
1572  iwe.cmd = SIOCGIWESSID;
1573  iwe.u.data.flags = 1;
1574  iwe.u.data.length = this->bss_set[i].ssid.el.len;
1575  current_ev = iwe_stream_add_point(info, current_ev,
1576  extra + IW_SCAN_MAX_DATA,
1577  &iwe,
1578  this->bss_set[i].ssid.essid);
1579  iwe.cmd = SIOCGIWMODE;
1580  iwe.u.mode = this->bss_set[i].bss_type;
1581  current_ev = iwe_stream_add_event(info, current_ev,
1582  extra + IW_SCAN_MAX_DATA,
1583  &iwe, IW_EV_UINT_LEN);
1584  iwe.cmd = SIOCGIWFREQ;
1585  iwe.u.freq.m = this->bss_set[i].ds_pset.chan;
1586  iwe.u.freq.e = 0;
1587  current_ev = iwe_stream_add_event(info, current_ev,
1588  extra + IW_SCAN_MAX_DATA,
1589  &iwe, IW_EV_FREQ_LEN);
1590  iwe.cmd = SIOCGIWENCODE;
1591  if (this->bss_set[i].cap_info & WL3501_MGMT_CAPABILITY_PRIVACY)
1592  iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1593  else
1594  iwe.u.data.flags = IW_ENCODE_DISABLED;
1595  iwe.u.data.length = 0;
1596  current_ev = iwe_stream_add_point(info, current_ev,
1597  extra + IW_SCAN_MAX_DATA,
1598  &iwe, NULL);
1599  }
1600  /* Length of data */
1601  wrqu->data.length = (current_ev - extra);
1602  wrqu->data.flags = 0; /* FIXME: set properly these flags */
1603  return 0;
1604 }
1605 
1606 static int wl3501_set_essid(struct net_device *dev,
1607  struct iw_request_info *info,
1608  union iwreq_data *wrqu, char *extra)
1609 {
1610  struct wl3501_card *this = netdev_priv(dev);
1611 
1612  if (wrqu->data.flags) {
1613  iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1614  &this->essid.el,
1615  extra, wrqu->data.length);
1616  } else { /* We accept any ESSID */
1617  iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID,
1618  &this->essid.el, "ANY", 3);
1619  }
1620  return wl3501_reset(dev);
1621 }
1622 
1623 static int wl3501_get_essid(struct net_device *dev,
1624  struct iw_request_info *info,
1625  union iwreq_data *wrqu, char *extra)
1626 {
1627  struct wl3501_card *this = netdev_priv(dev);
1628  unsigned long flags;
1629 
1630  spin_lock_irqsave(&this->lock, flags);
1631  wrqu->essid.flags = 1;
1632  wrqu->essid.length = this->essid.el.len;
1633  memcpy(extra, this->essid.essid, this->essid.el.len);
1634  spin_unlock_irqrestore(&this->lock, flags);
1635  return 0;
1636 }
1637 
1638 static int wl3501_set_nick(struct net_device *dev, struct iw_request_info *info,
1639  union iwreq_data *wrqu, char *extra)
1640 {
1641  struct wl3501_card *this = netdev_priv(dev);
1642 
1643  if (wrqu->data.length > sizeof(this->nick))
1644  return -E2BIG;
1645  strlcpy(this->nick, extra, wrqu->data.length);
1646  return 0;
1647 }
1648 
1649 static int wl3501_get_nick(struct net_device *dev, struct iw_request_info *info,
1650  union iwreq_data *wrqu, char *extra)
1651 {
1652  struct wl3501_card *this = netdev_priv(dev);
1653 
1654  strlcpy(extra, this->nick, 32);
1655  wrqu->data.length = strlen(extra);
1656  return 0;
1657 }
1658 
1659 static int wl3501_get_rate(struct net_device *dev, struct iw_request_info *info,
1660  union iwreq_data *wrqu, char *extra)
1661 {
1662  /*
1663  * FIXME: have to see from where to get this info, perhaps this card
1664  * works at 1 Mbit/s too... for now leave at 2 Mbit/s that is the most
1665  * common with the Planet Access Points. -acme
1666  */
1667  wrqu->bitrate.value = 2000000;
1668  wrqu->bitrate.fixed = 1;
1669  return 0;
1670 }
1671 
1672 static int wl3501_get_rts_threshold(struct net_device *dev,
1673  struct iw_request_info *info,
1674  union iwreq_data *wrqu, char *extra)
1675 {
1676  u16 threshold; /* size checked: it is u16 */
1677  struct wl3501_card *this = netdev_priv(dev);
1678  int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_RTS_THRESHOLD,
1679  &threshold, sizeof(threshold));
1680  if (!rc) {
1681  wrqu->rts.value = threshold;
1682  wrqu->rts.disabled = threshold >= 2347;
1683  wrqu->rts.fixed = 1;
1684  }
1685  return rc;
1686 }
1687 
1688 static int wl3501_get_frag_threshold(struct net_device *dev,
1689  struct iw_request_info *info,
1690  union iwreq_data *wrqu, char *extra)
1691 {
1692  u16 threshold; /* size checked: it is u16 */
1693  struct wl3501_card *this = netdev_priv(dev);
1694  int rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_FRAG_THRESHOLD,
1695  &threshold, sizeof(threshold));
1696  if (!rc) {
1697  wrqu->frag.value = threshold;
1698  wrqu->frag.disabled = threshold >= 2346;
1699  wrqu->frag.fixed = 1;
1700  }
1701  return rc;
1702 }
1703 
1704 static int wl3501_get_txpow(struct net_device *dev,
1705  struct iw_request_info *info,
1706  union iwreq_data *wrqu, char *extra)
1707 {
1708  u16 txpow;
1709  struct wl3501_card *this = netdev_priv(dev);
1710  int rc = wl3501_get_mib_value(this,
1711  WL3501_MIB_ATTR_CURRENT_TX_PWR_LEVEL,
1712  &txpow, sizeof(txpow));
1713  if (!rc) {
1714  wrqu->txpower.value = txpow;
1715  wrqu->txpower.disabled = 0;
1716  /*
1717  * From the MIB values I think this can be configurable,
1718  * as it lists several tx power levels -acme
1719  */
1720  wrqu->txpower.fixed = 0;
1721  wrqu->txpower.flags = IW_TXPOW_MWATT;
1722  }
1723  return rc;
1724 }
1725 
1726 static int wl3501_get_retry(struct net_device *dev,
1727  struct iw_request_info *info,
1728  union iwreq_data *wrqu, char *extra)
1729 {
1730  u8 retry; /* size checked: it is u8 */
1731  struct wl3501_card *this = netdev_priv(dev);
1732  int rc = wl3501_get_mib_value(this,
1733  WL3501_MIB_ATTR_LONG_RETRY_LIMIT,
1734  &retry, sizeof(retry));
1735  if (rc)
1736  goto out;
1737  if (wrqu->retry.flags & IW_RETRY_LONG) {
1738  wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
1739  goto set_value;
1740  }
1741  rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT,
1742  &retry, sizeof(retry));
1743  if (rc)
1744  goto out;
1745  wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
1746 set_value:
1747  wrqu->retry.value = retry;
1748  wrqu->retry.disabled = 0;
1749 out:
1750  return rc;
1751 }
1752 
1753 static int wl3501_get_encode(struct net_device *dev,
1754  struct iw_request_info *info,
1755  union iwreq_data *wrqu, char *extra)
1756 {
1757  u8 implemented, restricted, keys[100], len_keys, tocopy;
1758  struct wl3501_card *this = netdev_priv(dev);
1759  int rc = wl3501_get_mib_value(this,
1760  WL3501_MIB_ATTR_PRIV_OPT_IMPLEMENTED,
1761  &implemented, sizeof(implemented));
1762  if (rc)
1763  goto out;
1764  if (!implemented) {
1765  wrqu->encoding.flags = IW_ENCODE_DISABLED;
1766  goto out;
1767  }
1768  rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_EXCLUDE_UNENCRYPTED,
1769  &restricted, sizeof(restricted));
1770  if (rc)
1771  goto out;
1772  wrqu->encoding.flags = restricted ? IW_ENCODE_RESTRICTED :
1773  IW_ENCODE_OPEN;
1774  rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS_LEN,
1775  &len_keys, sizeof(len_keys));
1776  if (rc)
1777  goto out;
1778  rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_WEP_KEY_MAPPINGS,
1779  keys, len_keys);
1780  if (rc)
1781  goto out;
1782  tocopy = min_t(u16, len_keys, wrqu->encoding.length);
1783  tocopy = min_t(u8, tocopy, 100);
1784  wrqu->encoding.length = tocopy;
1785  memcpy(extra, keys, tocopy);
1786 out:
1787  return rc;
1788 }
1789 
1790 static int wl3501_get_power(struct net_device *dev,
1791  struct iw_request_info *info,
1792  union iwreq_data *wrqu, char *extra)
1793 {
1794  u8 pwr_state;
1795  struct wl3501_card *this = netdev_priv(dev);
1796  int rc = wl3501_get_mib_value(this,
1797  WL3501_MIB_ATTR_CURRENT_PWR_STATE,
1798  &pwr_state, sizeof(pwr_state));
1799  if (rc)
1800  goto out;
1801  wrqu->power.disabled = !pwr_state;
1802  wrqu->power.flags = IW_POWER_ON;
1803 out:
1804  return rc;
1805 }
1806 
1807 static const iw_handler wl3501_handler[] = {
1808  IW_HANDLER(SIOCGIWNAME, wl3501_get_name),
1809  IW_HANDLER(SIOCSIWFREQ, wl3501_set_freq),
1810  IW_HANDLER(SIOCGIWFREQ, wl3501_get_freq),
1811  IW_HANDLER(SIOCSIWMODE, wl3501_set_mode),
1812  IW_HANDLER(SIOCGIWMODE, wl3501_get_mode),
1813  IW_HANDLER(SIOCGIWSENS, wl3501_get_sens),
1814  IW_HANDLER(SIOCGIWRANGE, wl3501_get_range),
1815  IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy),
1816  IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy),
1817  IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy),
1818  IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy),
1819  IW_HANDLER(SIOCSIWAP, wl3501_set_wap),
1820  IW_HANDLER(SIOCGIWAP, wl3501_get_wap),
1821  IW_HANDLER(SIOCSIWSCAN, wl3501_set_scan),
1822  IW_HANDLER(SIOCGIWSCAN, wl3501_get_scan),
1823  IW_HANDLER(SIOCSIWESSID, wl3501_set_essid),
1824  IW_HANDLER(SIOCGIWESSID, wl3501_get_essid),
1825  IW_HANDLER(SIOCSIWNICKN, wl3501_set_nick),
1826  IW_HANDLER(SIOCGIWNICKN, wl3501_get_nick),
1827  IW_HANDLER(SIOCGIWRATE, wl3501_get_rate),
1828  IW_HANDLER(SIOCGIWRTS, wl3501_get_rts_threshold),
1829  IW_HANDLER(SIOCGIWFRAG, wl3501_get_frag_threshold),
1830  IW_HANDLER(SIOCGIWTXPOW, wl3501_get_txpow),
1831  IW_HANDLER(SIOCGIWRETRY, wl3501_get_retry),
1832  IW_HANDLER(SIOCGIWENCODE, wl3501_get_encode),
1833  IW_HANDLER(SIOCGIWPOWER, wl3501_get_power),
1834 };
1835 
1836 static const struct iw_handler_def wl3501_handler_def = {
1837  .num_standard = ARRAY_SIZE(wl3501_handler),
1838  .standard = (iw_handler *)wl3501_handler,
1839  .get_wireless_stats = wl3501_get_wireless_stats,
1840 };
1841 
1842 static const struct net_device_ops wl3501_netdev_ops = {
1843  .ndo_open = wl3501_open,
1844  .ndo_stop = wl3501_close,
1845  .ndo_start_xmit = wl3501_hard_start_xmit,
1846  .ndo_tx_timeout = wl3501_tx_timeout,
1847  .ndo_change_mtu = eth_change_mtu,
1848  .ndo_set_mac_address = eth_mac_addr,
1849  .ndo_validate_addr = eth_validate_addr,
1850 };
1851 
1852 static int wl3501_probe(struct pcmcia_device *p_dev)
1853 {
1854  struct net_device *dev;
1855  struct wl3501_card *this;
1856 
1857  /* The io structure describes IO port mapping */
1858  p_dev->resource[0]->end = 16;
1859  p_dev->resource[0]->flags = IO_DATA_PATH_WIDTH_8;
1860 
1861  /* General socket configuration */
1862  p_dev->config_flags = CONF_ENABLE_IRQ;
1863  p_dev->config_index = 1;
1864 
1865  dev = alloc_etherdev(sizeof(struct wl3501_card));
1866  if (!dev)
1867  goto out_link;
1868 
1869 
1870  dev->netdev_ops = &wl3501_netdev_ops;
1871  dev->watchdog_timeo = 5 * HZ;
1872 
1873  this = netdev_priv(dev);
1874  this->wireless_data.spy_data = &this->spy_data;
1875  this->p_dev = p_dev;
1876  dev->wireless_data = &this->wireless_data;
1877  dev->wireless_handlers = &wl3501_handler_def;
1878  netif_stop_queue(dev);
1879  p_dev->priv = dev;
1880 
1881  return wl3501_config(p_dev);
1882 out_link:
1883  return -ENOMEM;
1884 }
1885 
1886 static int wl3501_config(struct pcmcia_device *link)
1887 {
1888  struct net_device *dev = link->priv;
1889  int i = 0, j, ret;
1890  struct wl3501_card *this;
1891 
1892  /* Try allocating IO ports. This tries a few fixed addresses. If you
1893  * want, you can also read the card's config table to pick addresses --
1894  * see the serial driver for an example. */
1895  link->io_lines = 5;
1896 
1897  for (j = 0x280; j < 0x400; j += 0x20) {
1898  /* The '^0x300' is so that we probe 0x300-0x3ff first, then
1899  * 0x200-0x2ff, and so on, because this seems safer */
1900  link->resource[0]->start = j;
1901  link->resource[1]->start = link->resource[0]->start + 0x10;
1902  i = pcmcia_request_io(link);
1903  if (i == 0)
1904  break;
1905  }
1906  if (i != 0)
1907  goto failed;
1908 
1909  /* Now allocate an interrupt line. Note that this does not actually
1910  * assign a handler to the interrupt. */
1911 
1912  ret = pcmcia_request_irq(link, wl3501_interrupt);
1913  if (ret)
1914  goto failed;
1915 
1916  ret = pcmcia_enable_device(link);
1917  if (ret)
1918  goto failed;
1919 
1920  dev->irq = link->irq;
1921  dev->base_addr = link->resource[0]->start;
1922  SET_NETDEV_DEV(dev, &link->dev);
1923  if (register_netdev(dev)) {
1924  printk(KERN_NOTICE "wl3501_cs: register_netdev() failed\n");
1925  goto failed;
1926  }
1927 
1928  this = netdev_priv(dev);
1929 
1930  this->base_addr = dev->base_addr;
1931 
1932  if (!wl3501_get_flash_mac_addr(this)) {
1933  printk(KERN_WARNING "%s: Can't read MAC addr in flash ROM?\n",
1934  dev->name);
1935  unregister_netdev(dev);
1936  goto failed;
1937  }
1938 
1939  for (i = 0; i < 6; i++)
1940  dev->dev_addr[i] = ((char *)&this->mac_addr)[i];
1941 
1942  /* print probe information */
1943  printk(KERN_INFO "%s: wl3501 @ 0x%3.3x, IRQ %d, "
1944  "MAC addr in flash ROM:%pM\n",
1945  dev->name, this->base_addr, (int)dev->irq,
1946  dev->dev_addr);
1947  /*
1948  * Initialize card parameters - added by jss
1949  */
1950  this->net_type = IW_MODE_INFRA;
1951  this->bss_cnt = 0;
1952  this->join_sta_bss = 0;
1953  this->adhoc_times = 0;
1954  iw_set_mgmt_info_element(IW_MGMT_INFO_ELEMENT_SSID, &this->essid.el,
1955  "ANY", 3);
1956  this->card_name[0] = '\0';
1957  this->firmware_date[0] = '\0';
1958  this->rssi = 255;
1959  this->chan = iw_default_channel(this->reg_domain);
1960  strlcpy(this->nick, "Planet WL3501", sizeof(this->nick));
1961  spin_lock_init(&this->lock);
1962  init_waitqueue_head(&this->wait);
1963  netif_start_queue(dev);
1964  return 0;
1965 
1966 failed:
1967  wl3501_release(link);
1968  return -ENODEV;
1969 }
1970 
1971 static void wl3501_release(struct pcmcia_device *link)
1972 {
1973  pcmcia_disable_device(link);
1974 }
1975 
1976 static int wl3501_suspend(struct pcmcia_device *link)
1977 {
1978  struct net_device *dev = link->priv;
1979 
1980  wl3501_pwr_mgmt(netdev_priv(dev), WL3501_SUSPEND);
1981  if (link->open)
1982  netif_device_detach(dev);
1983 
1984  return 0;
1985 }
1986 
1987 static int wl3501_resume(struct pcmcia_device *link)
1988 {
1989  struct net_device *dev = link->priv;
1990 
1991  wl3501_pwr_mgmt(netdev_priv(dev), WL3501_RESUME);
1992  if (link->open) {
1993  wl3501_reset(dev);
1994  netif_device_attach(dev);
1995  }
1996 
1997  return 0;
1998 }
1999 
2000 
2001 static const struct pcmcia_device_id wl3501_ids[] = {
2002  PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0001),
2003  PCMCIA_DEVICE_NULL
2004 };
2005 MODULE_DEVICE_TABLE(pcmcia, wl3501_ids);
2006 
2007 static struct pcmcia_driver wl3501_driver = {
2008  .owner = THIS_MODULE,
2009  .name = "wl3501_cs",
2010  .probe = wl3501_probe,
2011  .remove = wl3501_detach,
2012  .id_table = wl3501_ids,
2013  .suspend = wl3501_suspend,
2014  .resume = wl3501_resume,
2015 };
2016 
2017 static int __init wl3501_init_module(void)
2018 {
2019  return pcmcia_register_driver(&wl3501_driver);
2020 }
2021 
2022 static void __exit wl3501_exit_module(void)
2023 {
2024  pcmcia_unregister_driver(&wl3501_driver);
2025 }
2026 
2027 module_init(wl3501_init_module);
2028 module_exit(wl3501_exit_module);
2029 
2030 MODULE_AUTHOR("Fox Chen <[email protected]>, "
2031  "Arnaldo Carvalho de Melo <[email protected]>,"
2032  "Gustavo Niemeyer <[email protected]>");
2033 MODULE_DESCRIPTION("Planet wl3501 wireless driver");
2034 MODULE_LICENSE("GPL");
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